The anti-corruption watchdog group Transparency International says Nigeria, Chad, Ivory Coast, the Democratic Republic of Congo and Angola are perceived to be among the most corrupt countries in sub-Saharan Africa.

It says those perceived to be among the most honest are Botswana, South Africa, Seychelles, Mauritius, Ghana, Gabon and Benin.

The rankings come from a new edition of the group’s yearly corruption index, which is based in part on the opinions of business people looking to invest in individual countries.

English to Africa reporter William Eagle spoke with Muzong Kodi, the regional director for Africa and the Middle East at Transparency International in Berlin, Germany.